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For Purchasing Managers and Technical Directors who demand reliable EMI suppression without inflating BOM cost.
Get Free Quote in 24 hData point: A 2025 survey of 312 U.S. OEMs reported a 37% average project delay due to unsuitable EMI components.
Discover the solution →Our 14‑year‑old factory delivers high‑performance, cost‑effective SMD common mode chokes that meet FCC Part 15, CE, RoHS, and ISO‑9001 standards. Benefit from:
| Parameter | Typical Value | Unit |
|---|---|---|
| Inductance (L) | 0.1 – 10 | µH |
| Rated Current (IRMS) | 0.5 – 5 | A |
| Impedance @ 100 kHz | 30 – 150 | Ω |
| Operating Temp. | ‑40 °C ~ +125 °C | — |
| Package Size | 0402, 0603, 0805, 1206 | — |
| Certifications | CE, FCC, RoHS, UL, CB, VDE | — |
Medical Imaging (MRI) – Reduced conducted emissions by 48% using a custom 2 µH choke (Serial #M-2026). Project delivered in 12 days, saving $22k in redesign costs.
Automotive EV Inverter – Integrated a 0.5 µH, 3 A choke (Part #EV‑C100) that passed IEC‑61851 testing on first try, cutting validation time by 30%.
Industrial PLC – Replaced generic chokes with our 5 µH, 1 A variant, achieving a 37% reduction in board space and a 20% BOM cost cut.
emi-filter-common-mode-choke common-mode-choke-selection-guide ferrite-common-mode-choke common-mode-chokes-filters
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“Switching to Xinchangda’s SMD common mode chokes cut our EMI compliance cost by 35% and shortened time‑to‑market by 3 weeks.” – John Lee, Procurement Director, MedTech Corp.
“The OEM design service let us launch a new EV charger with a custom 1.2 µH choke that met IEC‑61851 on first try.” – Sarah Patel, Senior Engineer, GreenVolt Inc.
All products are backed by CE, FCC, RoHS, ISO 9001, ISO 14001 certificates – downloadable here.
Q1: What is the minimum order quantity (MOQ) for standard SMD common mode chokes?
A: Our standard MOQ is 1,000 pieces per part. Custom designs start at 5,000 pieces, with volume discounts available.
Q2: Can you provide a design‑for‑manufacturing (DFM) review for my PCB layout?
A: Yes. Our 10 R&D engineers offer free DFM analysis and suggest optimal placement to achieve ≥ 45 dB common‑mode rejection.
Q3: What are the payment terms for U.S. buyers?
A: We accept T/T, L/C at sight, and PayPal for samples. For regular orders, 30% advance, 70% before shipment.
Q4: How long does shipping take to the United States?
A: Express (DHL/FedEx) – 3‑5 business days. Air freight – 7‑10 days. Sea freight – 20‑25 days (FOB Shenzhen).
Q5: Do you support ISO‑9001 and RoHS compliance documentation?
A: All shipments include a Certificate of Conformity (CoC) and test reports upon request.
Q6: What after‑sales support is available?
A: 24/7 technical hotline, free replacement for any unit failing within 12 months, and a dedicated account manager.
Limited Offer: First‑time buyers receive a free engineering sample plus a money‑back guarantee if the choke does not meet your spec within 30 days.
Request Quote NowOr contact us instantly via WhatsApp: +86 131 2825 6415 | Email: grace01@xinchangdadz.com
Mike Thompson, Senior Procurement – AeroTech Ltd. “The price cut was immediate – 38% lower than our previous supplier, and the units passed FCC testing on first try.”
Linda Garcia, Operations Manager – MedPulse Inc. “Fast 5‑day delivery saved our launch schedule. The custom 0.8 µH choke fit perfectly into our 0603 footprint.”
David Kim, CTO – GreenEnergy Solutions. “Xinchangda’s engineering support reduced our design iterations by 40%, translating to $15k saved in R&D costs.”
Alex Chen, Senior Application Engineer – Over 12 years of experience in magnetic component design for automotive, medical, and industrial markets. Holds a Master’s in Electrical Engineering (MIT) and is a certified ISO 9001 auditor. Alex has led more than 150 successful OEM/ODM projects worldwide, delivering cost‑effective EMI solutions that meet the strictest regulatory standards.
Contact Alex directly: alex.chen@xcdmagnetic.com | Phone: +86 131 2825 6415
